It´s a character skin done for a computer game. Hirez studios was able to get the real Bob Ross into the game, which is pretty awesome. They made him a skin for Sylvanus the Roman god of the forest which is very fitting. So the design of Bob the his tree monster are given ( I usually get a 3D turnaround as reference for the figures). The illustration (including multiple composition sketches) is done by me.

There have to be like three generations and then some who will instantly recognize him in that pose. I am 55, and can recall him painting his magic paintings (which do not look nearly as cohesive, or attractive in real life... I once happened across him doing a live show at a hotel in Atlanta I was attending a convention at) on public television in the very early 70's.